Plugin research results

For those who are researching other projects and how they handle plugins, please post your research results in this thread.

Note: If you are not talking specifically about the analysis of other project and how they handle plugins, please stay out of this thread.

There have been way too many off-topic tangents lately that are only distracting us from the work that needs to be done. Please don't make me get mean. :-(

If you are not directly discussing the results of research into another system please keep your comments out of this thread. There is way too much noise as is!